A lot of the people who are not upset with Meta limiting opinions and content related to the war in Gaza¹. Were gloating and happy when Meta limited opinions and content from right wing politicians² not so long ago.
Once you invite censorship for content you dont like, how can you expect it wont bite you in the ass later on.
This is why freedom of speech is an important principle. That overshadows how someone "feels" about speech.
Everyone is in favor of freedom of speech. ""Dictators such as Stalin and Hitler, were in favor of freedom of speech for views they liked only. If you're in favor of freedom of speech, that means you're in favor of freedom of speech precisely for views you despise." -Noam Chomsky
Slightly related though originating from a different context.
First they came for the socialists, and I did not speak out—because I was not a socialist. Then they came for the trade unionists, and I did not speak out—because I was not a trade unionist. Then they came for the Jews, and I did not speak out—because I was not a Jew. Then they came for me— and there was no one left to speak for me. —Martin Niemöller
Which in this context I use it to highlight that the protection of freedom of speech is not something you can ignore because you dont care about a topic. One must speak out against censorship and against limiting freedom of speech, whenever it is being limited. If we dont, then it becomes a bit more limited, and a little bit more, and eventually it will strike upon something you do care about, and it is far too late to speak up.
¹,² For this post I am assuming this is accurate. But i cannot prove either.